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Diffstat (limited to 'label-exp/main.go')
-rw-r--r--label-exp/main.go254
1 files changed, 17 insertions, 237 deletions
diff --git a/label-exp/main.go b/label-exp/main.go
index 673ee65..e15f71c 100644
--- a/label-exp/main.go
+++ b/label-exp/main.go
@@ -7,12 +7,10 @@ import (
"image/color"
"image/draw"
"image/png"
- "io"
"log"
"net/http"
"os"
"strconv"
- "time"
"github.com/boombuler/barcode"
"github.com/boombuler/barcode/qr"
@@ -74,218 +72,6 @@ func (lr *leftRotate) At(x, y int) color.Color {
// -----------------------------------------------------------------------------
-func decodeBitfieldErrors(b byte, errors [8]string) []string {
- var result []string
- for i := uint(0); i < 8; i++ {
- if b&(1<<i) != 0 {
- result = append(result, errors[i])
- }
- }
- return result
-}
-
-func printStatusInformation(d []byte) {
- log.Println("-- status")
-
- // Error information 1.
- for _, e := range decodeBitfieldErrors(d[8], [8]string{
- "no media", "end of media", "cutter jam", "?", "printer in use",
- "printer turned off", "high-voltage adapter", "fan motor error"}) {
- log.Println("error:", e)
- }
-
- // Error information 2.
- for _, e := range decodeBitfieldErrors(d[9], [8]string{
- "replace media", "expansion buffer full", "communication error",
- "communication buffer full", "cover open", "cancel key",
- "media cannot be fed", "system error"}) {
- log.Println("error:", e)
- }
-
- // Media width.
- log.Println("media width:", d[10], "mm")
-
- // Media type.
- switch b := d[11]; b {
- case 0x00:
- log.Println("media: no media")
- case 0x4a, 0x0a: // 0x4a = J, in reality we get 0x0a as in QL-1100 docs
- log.Println("media: continuous length tape")
- case 0x4b, 0x0b: // 0x4b = K, in reality we get 0x0b as in QL-1100 docs
- log.Println("media: die-cut labels")
- default:
- log.Println("media:", b)
- }
-
- // Mode.
- log.Println("mode:", d[15])
-
- // Media length.
- log.Println("media length:", d[17], "mm")
-
- // Status type.
- switch b := d[18]; b {
- case 0x00:
- log.Println("status type: reply to status request")
- case 0x01:
- log.Println("status type: printing completed")
- case 0x02:
- log.Println("status type: error occurred")
- case 0x04:
- log.Println("status type: turned off")
- case 0x05:
- log.Println("status type: notification")
- case 0x06:
- log.Println("status type: phase change")
- default:
- log.Println("status type:", b)
- }
-
- // Phase type.
- switch b := d[19]; b {
- case 0x00:
- log.Println("phase state: receiving state")
- case 0x01:
- log.Println("phase state: printing state")
- default:
- log.Println("phase state:", b)
- }
-
- // Phase number.
- log.Println("phase number:", int(d[20])*256+int(d[21]))
-
- // Notification number.
- switch b := d[22]; b {
- case 0x00:
- log.Println("notification number: not available")
- case 0x03:
- log.Println("notification number: cooling (started)")
- case 0x04:
- log.Println("notification number: cooling (finished)")
- default:
- log.Println("notification number:", b)
- }
-}
-
-// genLabelData converts an image to the printer's raster format.
-func genLabelData(src image.Image, offset, length int) (data []byte) {
- bounds := src.Bounds()
- pixels := make([]bool, 720)
- for y := bounds.Min.Y; y < bounds.Max.Y; y++ {
- length--
- if length <= 0 {
- break
- }
- off := offset
- for x := bounds.Max.X - 1; x >= bounds.Min.X; x-- {
- // TODO: Anything to do with the ColorModel?
- r, g, b, a := src.At(x, y).RGBA()
- pixels[off] = r == 0 && g == 0 && b == 0 && a != 0
- off++
- }
-
- data = append(data, 'g', 0x00, 90)
- for i := 0; i < 90; i++ {
- var b byte
- for j := 0; j < 8; j++ {
- b <<= 1
- if pixels[i*8+j] {
- b |= 1
- }
- }
- data = append(data, b)
- }
- }
- for ; length > 0; length-- {
- data = append(data, 'g', 0x00, 90)
- data = append(data, make([]byte, 90)...)
- }
- return
-}
-
-func printLabel(printer *ql.Printer, src image.Image,
- status *ql.Status, mediaInfo *ql.MediaInfo) error {
- data := []byte(nil)
-
- // Raster mode.
- // Should be the only supported mode for QL-800.
- data = append(data, 0x1b, 0x69, 0x61, 0x01)
-
- // Automatic status mode (though it's the default).
- data = append(data, 0x1b, 0x69, 0x21, 0x00)
-
- // Print information command.
- dy := src.Bounds().Dy()
- if mediaInfo.PrintAreaLength != 0 {
- dy = mediaInfo.PrintAreaLength
- }
-
- mediaType := byte(0x0a)
- if status.MediaLengthMM != 0 {
- mediaType = byte(0x0b)
- }
-
- data = append(data, 0x1b, 0x69, 0x7a, 0x02|0x04|0x40|0x80, mediaType,
- byte(status.MediaWidthMM), byte(status.MediaLengthMM),
- byte(dy), byte(dy>>8), byte(dy>>16), byte(dy>>24), 0, 0x00)
-
- // Auto cut, each 1 label.
- data = append(data, 0x1b, 0x69, 0x4d, 0x40)
- data = append(data, 0x1b, 0x69, 0x41, 0x01)
-
- // Cut at end (though it's the default).
- // Not sure what it means, doesn't seem to have any effect to turn it off.
- data = append(data, 0x1b, 0x69, 0x4b, 0x08)
-
- if status.MediaLengthMM != 0 {
- // 3mm margins along the direction of feed. 0x23 = 35 dots, the minimum.
- data = append(data, 0x1b, 0x69, 0x64, 0x23, 0x00)
- } else {
- // May not set anything other than zero.
- data = append(data, 0x1b, 0x69, 0x64, 0x00, 0x00)
- }
-
- // Compression mode: no compression.
- // Should be the only supported mode for QL-800.
- data = append(data, 0x4d, 0x00)
-
- // The graphics data itself.
- data = append(data, genLabelData(src, mediaInfo.SideMarginPins, dy)...)
-
- // Print command with feeding.
- data = append(data, 0x1a)
-
- // ---
-
- // Print the prepared data.
- if _, err := printer.File.Write(data); err != nil {
- return err
- }
-
- // TODO: We specifically need to wait for a transition to the receiving
- // state, and try to figure out something from the statuses.
- // We may also receive an error status instead of the transition to
- // the printing state. Or even after it.
- start, b := time.Now(), make([]byte, 32)
- for {
- if time.Now().Sub(start) > 3*time.Second {
- break
- }
- if n, err := printer.File.Read(b); err == io.EOF {
- time.Sleep(100 * time.Millisecond)
- } else if err != nil {
- return err
- } else if n < 32 {
- return errors.New("invalid read")
- } else {
- printStatusInformation(b)
- }
- }
- return nil
-}
-
-// -----------------------------------------------------------------------------
-
var font *bdf.Font
func genLabelForHeight(text string, height, scale int) image.Image {
@@ -339,9 +125,9 @@ var tmpl = template.Must(template.New("form").Parse(`
<p>Printer: {{ .Printer.Manufacturer }} {{ .Printer.Model }}
<p>Tape:
- {{ if .Status }}
- {{ .Status.MediaWidthMM }} mm &times;
- {{ .Status.MediaLengthMM }} mm
+ {{ if .Printer.LastStatus }}
+ {{ .Printer.LastStatus.MediaWidthMM }} mm &times;
+ {{ .Printer.LastStatus.MediaLengthMM }} mm
{{ if .MediaInfo }}
(offset: {{ .MediaInfo.SideMarginPins }} pt,
@@ -350,8 +136,8 @@ var tmpl = template.Must(template.New("form").Parse(`
(unknown media)
{{ end }}
- {{ if .Status.Errors }}
- {{ range .Status.Errors }}
+ {{ if .Printer.LastStatus.Errors }}
+ {{ range .Printer.LastStatus.Errors }}
<p>Error: {{ . }}
{{ end }}
{{ end }}
@@ -389,16 +175,15 @@ func getPrinter() (*ql.Printer, error) {
return printer, nil
}
-func getStatus(printer *ql.Printer) (*ql.Status, error) {
+func getStatus(printer *ql.Printer) error {
if err := printer.Initialize(); err != nil {
- return nil, err
+ return err
}
- if data, err := printer.GetStatus(); err != nil {
- return nil, err
- } else {
- printStatusInformation(data)
- return ql.DecodeStatus(data), nil
+ if err := printer.UpdateStatus(); err != nil {
+ return err
}
+ log.Printf("status\n%s", printer.LastStatus)
+ return nil
}
func handle(w http.ResponseWriter, r *http.Request) {
@@ -407,25 +192,22 @@ func handle(w http.ResponseWriter, r *http.Request) {
return
}
- var (
- status *ql.Status
- initErr error
- )
+ var initErr error
printer, printerErr := getPrinter()
if printerErr == nil {
defer printer.Close()
- status, initErr = getStatus(printer)
+ initErr = getStatus(printer)
}
var mediaInfo *ql.MediaInfo
- if status != nil {
- mediaInfo = ql.GetMediaInfo(status.MediaWidthMM, status.MediaLengthMM)
+ if printer.LastStatus != nil {
+ mediaInfo = ql.GetMediaInfo(printer.LastStatus.MediaWidthMM(),
+ printer.LastStatus.MediaLengthMM())
}
var params = struct {
Printer *ql.Printer
PrinterErr error
- Status *ql.Status
InitErr error
MediaInfo *ql.MediaInfo
Text string
@@ -433,7 +215,6 @@ func handle(w http.ResponseWriter, r *http.Request) {
}{
Printer: printer,
PrinterErr: printerErr,
- Status: status,
InitErr: initErr,
MediaInfo: mediaInfo,
Text: r.FormValue("text"),
@@ -450,8 +231,7 @@ func handle(w http.ResponseWriter, r *http.Request) {
label = &leftRotate{image: genLabelForHeight(
params.Text, mediaInfo.PrintAreaPins, params.Scale)}
if r.FormValue("print") != "" {
- if err := printLabel(
- printer, label, status, mediaInfo); err != nil {
+ if err := printer.Print(label); err != nil {
log.Println("print error:", err)
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-11 21:31:58 +0000